AUG15W Datasheet, PDF (11/15 Pages) Astec America, Inc – Ultra Low Profile DC - DC Module (Pb-free reflow compatible and ROHS Compliant)

Technical Reference Note
Ultra Low Profile
AUG 15W Series
D) complex parallel and multiple (Sequence start-up): Two converters supplying the same output voltage for a
single load and another converter supplying the different output voltage for another load.
Converter No.1
GND
+Vin
+Vout
-48V
Fuse
SW2 SW1
-Vin
PO
RC
ALM
-Vout
Load
Converter No.2
+Vin
-Vin
PO
RC
ALM
+Vout
-Vout
Converter No.3
+Vin
-Vin
PO
RC
ALM
+Vout
-Vout
Load
SW1 Close : Halt DC-DC converter No.1 and 2
SW2 Close : Halt DC-DC converter No.3
Figure 4
i) PO pins of the converters supplying the same output voltage are connected to the others and another PO pin of the
different output voltage converter is not connected.
ii) All three DC-DC converters, which are connected to ALM pins, stop their operation when a single one is halted in
mode protected by LVP or OVP.
iii) LED is optionally connected to ALM pin for the notice of DC-DC converter stoppage.
MODEL : AUG 15W SERIES
April 05 REVISION 02
SHEET 11 OF 15